3. The value of 741 would define permissions to be:
a) Rwxr ---- x
b) Rwxr –r-x
c) Rwxrw-rw-
d) Rwxr-x—x
The correct answer is d) Rwxr-x--x.
In Linux, file permissions are represented by a 10-character string, where the first character represents the file type (e.g. "-" for a regular file, "d" for a directory), and the remaining nine characters represent the permissions for the owner, group, and others.
The permissions are represented by three sets of three characters each, where the first set represents the permissions for the owner, the second set represents the permissions for the group, and the third set represents the permissions for others.
Each set of three characters represents the permissions for read, write, and execute, respectively. The letter "r" represents read permission, the letter "w" represents write permission, and the letter "x" represents execute permission. A hyphen "-" represents no permission.
The value of 741 would translate to "rwxr-x--x", where the first set of permissions (7) represents read, write, and execute permissions for the owner, the second set of permissions (4) represents read-only permission for the group, and the third set of permissions (1) represents execute-only permission for others.